SAT数学题常用符号介绍.

　　SAT数学考试是需要大家记忆专业词汇最多的考试，当然在记忆SAT数学词汇的同时，大家也需要关注一下SAT数学题常用的符号，这些符号用英文是如何表示的呢?我们该如何理解呢?下面我们来看看这些SAT数学题常用符号的全部内容吧。

　　Logical Symbols A ? B means if A is true then B is also true; if A is false then nothing is said about B. → may mean the same as ? (the symbol may also indicate the domain and codomain of a function; see table of mathematical symbols).

　　Logical Symbols

　　A ·B means if A is true then B is also true; if A is false then nothing is said about B.

　　→ may mean the same as ? (the symbol may also indicate the domain and codomain of a function; see table of mathematical symbols).

　　· may mean the same as ? (the symbol may also mean superset).

　　A· B means A is true if B is true and A is false if B is false.

　　The statement ?A is true if and only if A is false.

　　The statement A ∧ B is true if A and B are both true; else it is false.

　　The statement A ∨ B is true if A or B (or both) are true; if both are false, the statement is false.

　　· x: P(x) means P(x) is true for all x.

　　· x: P(x) means there is at least one x such that P(x) is true.

　　· x: P(x) means there is exactly one x such that P(x) is true.

　　x· y means y is derived from x.

　　以上就是对SAT数学题常用符号的介绍，希望对大家有帮助。如果想要了解更多关于SAT的信息，欢迎拨打澳际留学的免费咨询热线400-601-0022进行咨询，或者点击页面的“在线咨询”与顾问老师直接对话。